阿里云ecs内网连接不上mysql内网地址白名单和防火墙都设置了，vpc也是同一个vpc后来检查发现，是mysql的内网地址网段和docker的默认网段冲突了，改一下docker的默认网段就好了
# docker默认172.17.0.1# 修改或新增daemon.json文件[root@juluo-databases ~]# cat /etc/docker/daemon.json{"bip":"192.168.0.1/24"}[root@juluo-databases ~]# docker psCONTAINER ID IMAGECOMMAND CREATEDSTATUSPORTSNAMES9aaad41de73f redis:5.0.14 "docker-entrypoint.s…" 3 days ago Up 3 days 0.0.0.0:7803->6379/tcp redis[root@juluo-databases ~]# docker stop redis[root@juluo-databases ~]# systemctl restart docker[root@juluo-databases ~]# systemctl status docker[root@juluo-databases ~]# ifconfigdocker0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500inet 192.168.0.1 netmask 255.255.255.0 broadcast 192.168.0.255ether 02:42:60:ac:ba:5c txqueuelen 0 (Ethernet)RX packets 755341 bytes 2394620434 (2.2 GiB)RX errors 0 dropped 0 overruns 0 frame 0TX packets 863648 bytes 1740770629 (1.6 GiB)TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0# 再次ping mysqk-host通了
